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85707

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2,5-Dihydroxybenzoic acid

matrix substance for MALDI-MS, >99.0% (HPLC)

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Synonym(s):
2,5-DHBA, DHB, Gentisic acid, Hydroquinonecarboxylic acid
Linear Formula:
(HO)2C6H3CO2H
CAS Number:
Molecular Weight:
154.12
Beilstein/REAXYS Number:
2209119
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

matrix substance for MALDI-MS

Quality Level

assay

>99.0% (HPLC)

form

powder

analyte functional class(es)

polymers

analyte chemical class(es)

glycans, lipids, organic molecules, peptides, proteins

technique(s)

MALDI-MS: suitable

mp

200-207 °C
204-208 °C (lit.)

cation traces

Ba: ≤5 mg/kg
Ca: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
K: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

ε (extinction coefficient)

>2000 at 337 nm

SMILES string

OC(=O)c1cc(O)ccc1O

InChI

1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)

InChI key

WXTMDXOMEHJXQO-UHFFFAOYSA-N

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This Item
149357PHR3329126217
vibrant-m

85707

2,5-Dihydroxybenzoic acid

vibrant-m

149357

2,5-Dihydroxybenzoic acid

vibrant-m

PHR3329

2,5-Dihydroxybenzoic acid

vibrant-m

126217

2,4-Dihydroxybenzophenone

Quality Level

100

Quality Level

200

Quality Level

300

Quality Level

200

form

powder

form

powder

form

-

form

powder

mp

200-207 °C, 204-208 °C (lit.)

mp

204-208 °C (lit.)

mp

204-208 °C (lit.)

mp

144.5-147 °C (lit.)

grade

matrix substance for MALDI-MS

grade

-

grade

certified reference material, pharmaceutical secondary standard

grade

-

analyte functional class(es)

polymers

analyte functional class(es)

-

analyte functional class(es)

-

analyte functional class(es)

-

Application

2,5-Dihydroxybenzoic acid is an ionic liquid matrix used for the analysis of biomolecules using matrix-assisted laser desorption/ionization combined with mass spectrometry.
Most commonly used matrix for carbohydrates. For MALDI-MS of free neutral glycans. Produces [M+Na]+ ion; may show a weaker [M+K]+ ion. Other species may be generated by the addition of the appropriate inorganic salt.

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Description
Pricing

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Protocols

The development of modern mass spectrometry (MS) equipment with high resolution and mass accuracy has led to its use in analyzing glycans for both profiling and structural studies.

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